
20
FMC XM104 Connectivity Card User Guide
UG536 (v1.1) September 24, 2010
Chapter 1:
XM104
The Si5368 does not provide any clock outputs to the board without first going through
internal register initialization via the serial IIC bus interface from the bus master. Asserting
the reset input also requires re-initialization of the Si5368 registers to re-establish clock
outputs. The Si5368 is located at IIC address 0x68.
For additional application information on the Si5368 component see the manufacturer's
data sheet at
G10
LA03_N
LVCMOS_Vadj
Output
C3B
G9
LA03_P
LVCMOS_Vadj
Output
C2B
H8
LA02_N
LVCMOS_Vadj
Output
C1B
H7
LA02_P
LVCMOS_Vadj
Input
RESET_B
Notes:
1. These signals are either inputs or outputs to the Si5368 depending upon the state of an internal Si5368 register.
Table 1-13:
Si5368 Clock I/O Connections to FMC HPC Connector J1
(Cont’d)
FMC Connector J1
Pin
Signal Name
I/O Standard
Si5368 In/Out
Si5368